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Finding the Fourth Proportional to 105,879.39, 146,071.88 and 60,533.01

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Solution

The fourth proportional to 105,879.39, 146,071.88 and 60,533.01 is: 83,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.39 : 146,071.88 = 60,533.01 : x
  2. Step 2: Convert to fraction form
    105,879.39/146,071.88 = 60,533.01/x
  3. Step 3: Cross multiply
    105,879.39x = 146,071.88 × 60,533.01
  4. Step 4: Simplify right side
    105,879.39x = 8,842,170,270.09
  5. Step 5: Solve for x
    x = 8,842,170,270.09/105,879.39
  6. Step 6: Final answer
    x = 83,511.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.